Các câu hỏi tương tự
Tính 1) 4/5 +13/18 2) 3/7 -11/8 3) -7/10 - -4/5 4) 3/20 -1/25 5) 2/3 - 5/6 6) 1/4 + -3/8 - 19/10 7) -9/10 - -7/18 8) 3/10 - 11/18 9) 3/5 -5/6 + -7/12 10) -4/9 - (-5 )/6 - 3/8
Tính:A=1+2-3-4+5+6-7-8+9+10-11-12+.....+97+98-99-100
1 + 2 + 3 + 4 + 5 + 6 + 7 +8
3+ 4 +5 + 6 + 7+8 +9 + 10 +11
1+ 3 + 5 + 7 + 9 + 11+ 13 + 15
2+ 4 + 6 + 8 + 10 + 12 + 14 + 16
1+ 4 + 7 + 10 + 13 + 16 + 19 + 22
6+ 8 + 10 + 12 + 14 + 16 + 18
7 + 10 + 13 + 16 + 19 + 22 + 25 / 1 + 5 + 9 + 13 + 17 + 21 + 25 + 29 + 33 + 37
thực hiện phép tính sau 1 cách hợp lí
a.(10^2+11^2+12^2):(13^2+14^2)
b.1*2*3*...*9-1*2*...*8-1*2*3*...*7*8^2
c.(3*4*2^16)^2/11*2^13*4^11-16^9
d.13-12+11+10-9+8-7-6+5-4+3+2-1
đang cần gấp
nhanh mình tick cho
7 Tính nhanh tổng sau
A=(2+3+4+5+6+7+8+9+10+11+12+13)-(1+2+3+4+5+6+7+8+9+10+11+12)
A -17/30 + 11/15 - 7/12
1/2+3/4-(3/4-4/5)
-7/25×11/13+ -7/25×2/13-18/25
(-3,2)+ -15/64+(0,8-2 4/15)÷3 2/3
-5/9+5/9÷(1 2/3- 2 1/12)
-5/7×2/11+ -5/7×9/11+ 1 5/7
(3/8+ -3/4+7/12)÷5/6+1/2
50%×1 1/3×10×7/35×0,75
Mn giúp mk với
Thực hiện phép tính:
1,-4/7 + 2/3x -9/14
2,17/13 - ( 4/13 - 11 )
3, 8 2/7 - ( 3 4/9 + 4 2/7 )
5, ( 2/3 - 1 1/2): 4/3 + 1/2
6, -5/13 + 2/5 + -8/13 + 3/5 - 3/7
7, 6/5 x 3/7 + 6/5 : 7/10 + 6/5
Bài 1 Tính nhanh
a) -3/7 + 5/13 + 3/7
b) -5/21+-2/21+8/24
c) -5/11+(-6/11+2)
d) (-1/32+1/2)+15/32
e)5/17+ -6/13 + 3/4 + 7/-13+12/17
f) 7/23+-18/18+-4/9+16/23+-5/8
g)1/3+-3/4+3/5+-1/36+1/15+-2/9
h)-1/2+1/3+-1/4+-2/8+4/18+4/9
Bài 1: Tính
a. 5 × -7/10
b. 4/5 × -3/22
c. 4/9 + 4/3 × 16/4
d. 11/22 - 3/9 × 14/21
Bài 2: Tính hợp lý
A = 6/13 × 5/7 + 6/13 × 2/7 + 17/13
B = 11/15 × 4/11 + 11/15 × 5/11 + 11/15 × 2/11
C = ( 19/64 - 33/22 + 24/51 ) × ( 1/5 - 1/15 - 2/15 )
D = 8/13 × 7/12 + 8/13 × 5/12 - 1/12